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Browsing Articles, congressos, llibres by Subject "Processament de la parla"

Browsing Articles, congressos, llibres by Subject "Processament de la parla"

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  • Lopez-de-Ipiña, Karmele; Alonso, Jesús B.; Solé-Casals, Jordi; Barroso, Nora; Faundez-Zanuy, Marcos; Ecay-Torres, Miriam; Travieso, Carlos M.; Ezeiza, Aitzol; Estanga, A. (2013)
    Alzheimer’s disease (AD) is the most prevalent form of progressive degenerative dementia and it has a high socio-economic impact in Western countries, therefore is one of the most active research areas today. Its diagnosis ...
  • Zaiats, Vladimir; Solé-Casals, Jordi; Martí i Puig, Pere; Reig Bolaño, Ramon (Springer, 2010)
    This paper analyzes applications of cumulant analysis in speech processing. The main focus is made on an integral representation for cUl1luJants using integrals involving cyclic products of kernels. These integrals serve ...
  • Travieso, Carlos M.; Alonso, Jesús B.; Orozco-Arroyave, J.R.; Solé-Casals, Jordi; Gallego Jutglà, Esteve (Springer, 2013)
    This work describes a novel system for characterizing Laryngeal Pathologies using nonlinear dynamics, considering different complexity measures that are mainly based on the analysis of the time delay embedded space. The ...
  • Reig Bolaño, Ramon; Martí i Puig, Pere; Solé-Casals, Jordi; Zaiats, Vladimir; Parisi Baradad, Vicenç (Springer, 2010)
    Abstract. Wavelet derived codification techniques are widespread used in image codifiers. The wavelet based compression methods are adequate for representing transients. In this paper we explore the use of the discrete ...
  • Solé-Casals, Jordi; Martí i Puig, Pere; Reig Bolaño, Ramon (2009)
    In this paper we explore the use of non-linear transformations in order to improve the performance of an entropy based voice activity detector (VAD). The idea of using a non-linear transformation comes from some previous ...
  • Lopez-de-Ipiña, Karmele; Egiraun, Harkaitz; Solé-Casals, Jordi; Ecay-Torres, Miriam; Ezeiza, Aitzol; Barroso, Nora; Martinez-Lage, Pablo; Martinez de Lizardui, Unai (Springer, 2013)
    Alzheimer's disease (AD) is the most prevalent form of progressive degenerative dementia; it has a high socio-economic impact in Western countries. The purpose of our project is to contribute to earlier diagnosis of AD and ...
  • Lopez-de-Ipiña, Karmele; Solé-Casals, Jordi; Eguiraun, Harkaitz; Alonso, Jesús B.; Travieso, Carlos M.; Ezeiza, Aitzol; Barroso, Nora; Ecay-Torres, Miriam; Martinez-Lage, Pablo; Beitia, Blanca (Elsevier, 2015)
    Alzheimer’s disease (AD) is the most prevalent form of degenerative dementia; it has a high socio-economic impact in Westerncountries. The purpose of our project is to contribute to earlier diagnosis of AD and allow better ...
  • Martí i Puig, Pere; Solé-Casals, Jordi; Reig Bolaño, Ramon; Zaiats, Vladimir (Springer, 2010)
    Abstract. In this paper we show how a nonlinear preprocessing of speech signal -with high noise- based on morphological filters improves the performance of robust algorithms for pitch tracking (RAPT). This result happens ...
  • Lopez-de-Ipiña, Karmele; Alonso, Jesús B.; Barroso, Nora; Faundez-Zanuy, Marcos; Ecay-Torres, Miriam; Solé-Casals, Jordi; Travieso, Carlos M.; Estanga, A.; Ezeiza, Aitzol (Springer, 2012)
    Alzheimer Disease (AD) is one of the most common dementia and their socio-economic relevance is growing. Its diagnosis is sometimes made by excluding other dementias, but definitive confirmation must await the ...
  • Solé-Casals, Jordi; Zaiats, Vladimir; Monte-Moreno, Enric (Springer, 2010)
    This special issue aims to cover some problems related to non-linear and nonconventional speech processing. The origin of this volume is in the ISCA Tutorial and Research Workshop on Non-Linear Speech Processing, NOLISP’09, ...
  • Solé-Casals, Jordi; Monte-Moreno, Enric (2002)
    The linear prediction coding of speech is based in the assumption that the generation model is autoregresive. In this paper we propose a structure to cope with the nonlinear effects presents in the generation of the ...
  • Lopez-de-Ipiña, Karmele; Alonso, Jesús B.; Solé-Casals, Jordi; Barroso, Nora; Henriquez, P.; Faundez-Zanuy, Marcos; Travieso, Carlos M.; Ecay-Torres, Miriam; Martinez-Lage, Pablo; Egiraun, Harkaitz (Springer, 2013)
    Alzheimer's disease is the most prevalent form of progressive degenerative dementia; it has a high socio-economic impact in Western countries. Therefore it is one of the most active research areas today. Alzheimer's is ...
  • Zaiats, Vladimir; Solé-Casals, Jordi (2009)
    This paper analyzes applications of cumulant analysis in speech processing. A special focus is made on different second-order statistics. A dominant role is played by an integral representation for cumulants by means ...
  • Lopez-de-Ipiña, Karmele; Alonso, Jesús B.; Travieso, Carlos M.; Solé-Casals, Jordi; Egiraun, Harkaitz; Faundez-Zanuy, Marcos; Ezeiza, Aitzol; Barroso, Nora; Ecay-Torres, Miriam; Martinez-Lage, Pablo; Martinez de Lizardui, Unai (MDPI, 2013)
    The work presented here is part of a larger study to identify novel technologies and biomarkers for early Alzheimer disease (AD) detection and it focuses on evaluating the suitability of a new approach for early AD ...
  • Faundez-Zanuy, Marcos; Sesa Nogueras, Enric; Roure Alcobé, Josep; Garré Olmo, Josep; Lopez-de-Ipiña, Karmele; Solé-Casals, Jordi (Springer, 2014)
    In this paper we present experimental results comparing on-line drawings for control population (left and right hand) as well as Alzheimer disease patients. The drawings have been acquired by means of a digitizing tablet, ...
  • Solé-Casals, Jordi; Martí i Puig, Pere; Reig Bolaño, Ramon; Zaiats, Vladimir (Springer, 2010)
    In this paper we explore the use of non-linear transformations in order to improve the performance of an entropy based voice activity detector (VAD). The idea of using a non-linear transformation comes from some ...
  • Solé-Casals, Jordi; Jutten, Christian; Taleb, Anisse (2000)
    The prediction filters are well known models for signal estimation, in communications, control and many others areas. The classical method for deriving linear prediction coding (LPC) filters is often based on the minimization ...
  • Solé-Casals, Jordi; Gallego Jutglà, Esteve; Martí i Puig, Pere; Travieso, Carlos M.; Alonso, Jesús B. (Springer, 2013)
    Speech signals in real scenario ambient are usually mixed with some other signals, such as noise. This may interfere with posterior signal processing applied to the signals. In this work, a new technique of data denoising ...
  • Lopez-de-Ipiña, Karmele; Alonso, Jesús B.; Barroso, Nora; Solé-Casals, Jordi; Ecay-Torres, Miriam; Martinez-Lage, Pablo; Zelarain, F.; Egiraun, Harkaitz; Travieso, Carlos M. (Springer, 2014)
    The purpose of our project is to contribute to earlier diagnosis of AD and better estimates of its severity by using automatic analysis performed through new biomarkers extracted from non-invasive intelligent methods. The ...

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